British pop star Cheryl Cole turned 30 in style with a wild night out in Las Vegas over the weekend (29-30Jun13).

The former Girls Aloud star headed to Sin City on Saturday (29Jun13) with her dancer boyfriend Tre Holloway and her bandmates and best pals Kimberley Walsh and Nicola Roberts.

Cole's entourage hit the city's top haunt Hakkasan and danced the night away to a set by Scottish DJ Calvin Harris, who previously teamed up with the singer on her track Call My Name.

On Sunday (30Jun13), the day of her birthday, Cole hosted a lavish pool party at a private home in Malibu, California, where models in mermaid costumes lounged next to the water and guests played around in a giant inflatable ball.

After being inundated with congratulations messages from fans on, Cole tweeted, "Awwww!!! Thank you all so much for my birthday wishes... you are the sweetest!!!!!!"